Finding the Fourth Proportional to 6,912,000.60, 10,368,000.90 and 2,119,651.80
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Solution
The fourth proportional to 6,912,000.60, 10,368,000.90 and 2,119,651.80 is: 3,179,477.70
Step by Step Solution
- Step 1: Write the proportion equation
6,912,000.60 : 10,368,000.90 = 2,119,651.80 : x - Step 2: Convert to fraction form
6,912,000.60/10,368,000.90 = 2,119,651.80/x - Step 3: Cross multiply
6,912,000.60x = 10,368,000.90 × 2,119,651.80 - Step 4: Simplify right side
6,912,000.60x = 21,976,551,770,086.62 - Step 5: Solve for x
x = 21,976,551,770,086.62/6,912,000.60 - Step 6: Final answer
x = 3,179,477.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.